(a) whether any proposal for running trains on CNG and Diesel mixture is under consideration of the Government;
(b) if so, the details thereof;
(c) whether such engines are being manufactured in the country;
(d) if so, whether CNG trial of such engines has been conducted;
(e) if so, whether such engines are proposed to be used in long distance trains;
(f) if so, the distance for which said engines are proposed to be used under first phase; and
(g) the time by which final decision in this regard is likely to be taken?